Posted on October 12, 2016 at 22:35
We are using the following USB FS library. All I need is an additional IN end point to send data to Host. When I tried to add an End point, for end point 2, transfer complete flag is never set. When using End point 1 it is working fine.
For End point 2: I can never clear the interrupt as transfer complete is never set. More over, I do not see any data sent to Host.
Any help is really appreciated.
if (diepint.b.emptyintr)
{
DCD_WriteEmptyTxFifo(pdev , epnum);
CLEAR_IN_EP_INTR(epnum, emptyintr);
}
To add Endpoint:
/**
* @brief CustomHIDDevice_Init
* Initialize the HID interface
* @param pdev: device instance
* @param cfgidx: Configuration index
* @retval status
*/
static uint8_t CustomHIDDevice_Init (void *pdev, uint8_t cfgidx)
{
/* Open EP IN */
DCD_EP_Open((USB_OTG_CORE_HANDLE *)pdev,
EP1_IN,
0x40,
USB_OTG_EP_INT);
/* Open EP IN */
DCD_EP_Open((USB_OTG_CORE_HANDLE *)pdev,
EP2_IN,
0x40,
USB_OTG_EP_INT);
MyUSBDescriptor.Get_SerialNum(&MyConfigData.MyVars);
return USBD_OK;
}
Any ideas or help really appreciated. Here is the library code version:
******************************************************************************
* @file usb_dcd_int.c
* @author MCD Application Team
* @version V2.1.0
* @date 19-March-2012
* @brief Peripheral Device interrupt subroutines
#stm32f107
